<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        [v-cloak] { display: none }
    </style>
</head>
<body>
      <div id="app">
          <!--避免闪屏   vuejs运行时渲染-->
          <p v-once>
              {{msg}}
              {{msg}}
              {{msg}}
              {{msg}}
              {{msg}}
              {{msg}}
          </p>
      </div>
</body>
<script src="./js/vue.js"></script>
<script>
    Vue.config.productionTip=false;
    var vm = new Vue({
        el:"#app",
        data:{
            msg:"123"
        }
    })
</script>
</html>